The URL can be used to link to this page

Home My WebLink AboutNC0088731_ Draft Factsheet_20231023NCDEQ / DWR / NPDES EXPEDITED FACT SHEET - NPDES PERMIT RENEWAL NPDES Permit NC0088731 Sara Bassett / Compliance & Expedited Permitting Unit / sara.bassett@deq.nc.gov / October 2023 FACILITY INFORMATION Applicant/Facility Name Certainteed Gypsum NC, Inc., Certainteed Gypsum Wallboard WWTP Applicant Address 921 Shore Road, Semora Rd NC, 27343 Facility Physical Address/Mailing Address Same as applicant address Permitted Flow (MGD) 0.005 MGD Type of Waste 100% Domestic, < 1 MGD Facility Class PCNC County Person Permit Status Renewal Regional Office Raleigh STREAM CHARACTERISTICS Receiving Stream Hyco Lake Stream Classification WS-V, B Stream Segment 22-58-(0.5) Outfall Lat. 36.4872N 7Q10 - Summer (cfs) - Outfall Long. 79.0678W 7Q10 - Winter (cfs) - Drainage basin Roanoke 30Q2 (cfs) - Subbasin 03-02-05 Average Flow (cfs) - HUC 03010104 303(d) List No BASIC INFO FOR EXPEDITED PERMIT RENEWAL Does permit need Daily Max NH3 limits? Already present Does permit need TRC limits/footnote? Already present Does permit have toxicity testing? No Does permit have any Special Conditions? No Does permit have instream monitoring? No New expiration date: November 30, 2028 FACILITY SUMMARY The CertainTeed Gypsum Wallboard WWTP is a minor municipal facility (flow<1 MGD) that receives 100% domestic waste. The design capacity for the treatment system is 0.005 MGD and the permitted flow is 0.005 MGD. The facility consists of the following components:  an extended-aeration package plant that includes • inlet bar screen • aerated-flow equalization basin (1667 gallon) • aeration tank (5,000 gallon) • clarifier (833 gallon) • sludge-handling tank (1125 gallon) • dual (2) blowers, and  a tertiary rapid-sand filter system that includes • two (2) each 3.5 ft x 3.5 ft sand filter cells • clear-well tank (560 gallon) • backwash surge tank (560 gallon) • tablet chlorinator • chlorine-contact chamber (208 gallon) • tablet dechlorinator • dual (2) blowers • dual (2) discharge pumps  backup power generator RENEWAL SUMMARY This renewal contains the following changes: • Updated Section A. (2) to reflect current federal requirements for Electronic Reporting of Discharge Monitoring Reports. • Added facility grade to box (PCNC) COMPLIANCE HISTORY 15 enforcements, mostly for limit violations since 2017 COMMENTS ON DRAFT PERMIT